Table 3 Confirmatory factor analysis of applying HSOPSC in Taiwan.

Likelihood ratio X ²

63.65

Normalized chi-square

1.872***

Root mean square error of approximation (RMSEA)

0.033***

Goodness of fit index (GFI)

0.986***

Adjusted goodness of fit index (AGFI)

0.960***

Expected cross-validity index (ECVI)

0.193***

Normalized fit index (NFI)

0.977***

Relative fit index (RFI)

0.956***

Incremental fit index (IFI)

0.989***

Tucker-Lewis index (TLI)

0.979***

Comparative fit index (CFI)

0.989***

Parsimony adjusted NFI (PNFI)

0.503***

Parsimonious goodness of fit index (PGFI)

0.430

Akaike information criterion (AIC)

151.6***

Critical number (CN)

601.0***